GC One Report 2023 [EN]

Age: 50 Years Appointed: 1 February 2022 Mr. Chaya Chandavasu Executive Vice President - Sustainability Education/Training Doctor of Chemical Engineering, New Jersey Institute of Technology, U.S.A. Master of Chemical Engineering, New Jersey Institute of Technology, U.S.A. Bachelor of Science (Chemistry), (First-Class Honors), Mahidol University Climate Action Leaders Forum (CAL Forum) Class 2/2023, Thailand Greenhouse Gas Management Organization (Public Organization) The Executive Program in Energy Literacy for a Sustainable Future, Class 16/2022, Thailand Energy Academy (TEA) Advanced Senior Executive Program, Sasin & Kellogg School of Management, 2008 Subsidiary Governance and Transformative Leadership for Global Enterprise, 2022, Director’s Legal Liabilities, Ethical Leadership for New Era and High Performing Board & Board Effectiveness, 2021 (In-house Programs by GC) and Director Certification Program (DCP), Class 152/2011, Thai Institute of Directors Association (IOD) Board Member/Management in Listed Company - The Stock Exchange of Thailand : 1 Executive Vice President - Sustainability, PTT Global Chemical Public Company Limited Board Member/Management in Non-Listed Company - The Stock Exchange of Thailand : 5 Chairman, Solution Creation Company Limited Director, GC America Sustainability Corporation Director, GC Ventures Company Limited Director, GC Ventures America Corporation Director, Sarn Palung Social Enterprise Company Limited Position in Other Organizations/Institutions : 2 Chairman of Sub-Committee on Climate Change Policy under Executive Committee of Thailand Carbon Neutral Network (TCNN) Committee Member of Board of Director, Marketing Association of Thailand (MAT) Work Experiences (5-year Past Experiences) 28 Feb 2022 - 15 May 2023 Director, Solution Creation Company Limited Oct 2021 - Feb 2022 Director, Emery Oleochemicals UK Limited 1 Oct 2019 - 31 Jan 2022 Senior Vice President - Sustainability and Corporate Branding, PTT Global Chemical Public Company Limited 22 Oct 2020 - 1 Nov 2021 Director, Emery Oleochemicals (M) Sdn. Bhd. 22 Oct 2020 - 1 Nov 2021 Director, Emery Specialty Chemicals Sdn. Bhd. 23 May 2018 - 30 Oct 2019 Managing Director, GC Ventures Company Limited 27 Jan 2016 - 30 Sep 2019 Director, Solution Creation Company Limited 1 Nov 2015 - 30 Sep 2019 Senior Vice President - Science and Innovation, PTT Global Chemical Public Company Limited 2016 - 2019 Director, GC America Sustainability Corporation 2013 - 2019 Chairman, Auria BioChemicals Company Limited Shareholding : None Relation among Family with other Directors, Management, Major Shareholders of the Company or Subsidiaries : Spouse : Mrs. Rattiya Chandavasu, Senior Vice President, Secondment as Senior Vice President - Strategy Office and Special Projects, allnex Holding GmbH 379 PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED Form 56-1 One Report 2023

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